Contrast ratio | Test results | LCD test | Small-screen tests | Lagom home

Contrast ratio of E207WFP

Contrast ratio 701:1
Monitor model E207WFP
Submitted 30 Jun 2008 19:30 CEST, by 75.27.*.*
Camera model SANYO Electric Co.Ltd. CG6
Processing remarks

image file 1: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.
Note: image file 1: suggested exposure time: 1.2 s (Set EV to +1.2)
image file 2: Note: image seems to be noisy. Try reducing the ISO setting or increasing the exposure time.

Black
Screen photo
[open image]
Luminance 0.4 cd/m2
Luminance spread 0.14 cd/m2 (2 standard deviations)
Exposure value –3.72 stops   (aim for –2 to –3)
Exposure spread 0.5 stops
Area used for calculation 0.549 x 0.549
Camera settings Exposure time: 0.5   ISO: 400   F-number: 3.5
Focal length: 38 mm   (35 mm equivalent)
Exposure compensation: 0
White
Screen photo
[open image]
Luminance 279 cd/m2
Luminance spread 45 cd/m2 (2 standard deviations)
Exposure value –1.58 stops   (aim for –2 to –3)
Exposure spread 0.24 stops
Area used for calculation 0.549 x 0.549
Camera settings Exposure time: 1/319   ISO: 400   F-number: 3.5
Focal length: 38 mm   (35 mm equivalent)
Exposure compensation: 0

The luminance values in cd/m2 are not very reliable, since camera sensitivities can easily differ up to 50% from their nominal value. Typically, the real luminance is 30% lower than this number. The area used for calculation is chosen such that it corresponds to a viewing angle of ±14° horizontally and ±10.5° vertically, which is equivalent to viewing the screen from a distance of about 1.5 times the diagonal size.

Unfortunately, there is a lot of variation in how cameras use EXIF settings. If photos from your camera your produce unusable results, try coming back in a few days. I review submitted pictures regularly and try to fix problems.